S
M
T
W
T
F
S
27
32°
21°
28
33°
23°
29
35°
24°
30
36°
22°
31
37°
20°
1
35°
19°
2
33°
18°
3
30°
17°
4
28°
17°
5
27°
16°
6
31°
16°
7
30°
15°
8
25°
16°
9
27°
10°
10
29°
11°
11
23°
10°
12
24°
11°
13
21°
16°
14
30°
17°
15
32°
17°
16
26°
13°
17
36°
21°
18
24°
7°
19
Hist. Avg.
27°
10°
20
Hist. Avg.
27°
10°
21
Hist. Avg.
26°
10°
22
Hist. Avg.
26°
10°
23
Hist. Avg.
26°
10°
24
Hist. Avg.
26°
9°
25
Hist. Avg.
26°
9°
26
Hist. Avg.
26°
9°
27
Hist. Avg.
26°
9°
28
Hist. Avg.
26°
9°
29
Hist. Avg.
26°
9°
30
Hist. Avg.
26°
9°
31
Hist. Avg.
26°
9°
1
Hist. Avg.
26°
9°
2
Hist. Avg.
26°
9°
3
Hist. Avg.
26°
9°
4
Hist. Avg.
26°
9°
5
Hist. Avg.
26°
9°
6
Hist. Avg.
26°
9°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Alliston
Alliston's January 2027 forecast shows daily high temperatures ranging from 21° to 37°, with overnight lows between 7° and 24°. The average high for January is 30° with an average low of 16°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Alliston. See also: February | March | April.
